In ancient times, solstices used to be celebrated by festivals that lasted for several days. The winter solstice marks the longest night of the year, and after that the days start to be longer again gradually. This can be seen as a symbolic return of the sun, and this is the real origin of the holidays celebrated on 24th and 25th of December. This was symbolically celebrated in various cultures in ancient times as the birthdays of sun gods, for example the Egyptian god Ra or Indo-Persian god Mithra. This symbolism of the return of the sun resonates even more nowadays during the Central Sun alignment of the december solstice.

Meanwhile, dark forces have long been corrupting cultures throughout the world to insert their own crazy mythologies. This is what is hidden in the mainstream christmas rituals. The days around the december solstice also mark the beginning of the zodiac sign of capricorn, which is associated with the planet Saturn. In dark force mythology, they see Saturn as one of their main evil god that they worship, which comes from the fact that long time ago, dark forces opened strong negative portals on Saturn and its moons, established bases there, and some of the main negative plasma filaments were rooted there. This has greatly distorted the energy emitted by Saturn, but Saturn as a deity and a planet are not really evil, their real energy is positive.
Etymologically, the name satan comes from Saturn, and santa comes from satan. Throughout history, many solstice festivals were influenced to be more and more centered around the worship of an evil image of Saturn and mainstream christmas rituals are the remnants of this.

For these reasons, I would like to strongly recommend people to be careful and make conscious decisions about what rituals and ceremonies they participate in, and the way they participate, not only during the december holidays, but throughout all holidays of the year, as well as various other artistic and cultural celebrations, in any culture throughout the world. Remember that symbols are everywhere, make conscious intentions about what you consent to, what you decide to use sacred symbols for, and research what the symbols really mean.